More than one wire under a screw terminal

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jap said:
Nah....no use to ruin a perfectly good looking factory paint job.


JAP>
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I just sand the back and install a star washers behind the screws. Overkill I know but it looks clean.

As for the OP's panel, I would twist them all together, green heat shrink over that and land on one terminal. So now you have 3 wires under the
terminal which might not be rated for 3. So sometimes I crimp a Ferrule on them and land that.
 
Andy Delle said:
It just looks sloppy to me code issues aside. I would run three #12 or #14 green THHN from the terminal block to the ground bar.
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Why not just drop off the EGC's on the ground bar to begin, forget the ground terminal blocks on the dinrail, and save all the extra hassle ?

JAP>
 
I work in control panels almost daily, those DIN rail terminals don't have the same restrictions/listing (one lug one wire) as regular terminals do. The instructions for the ones I work don't say 1 12 AWG or 2 14 AWG, its typically based on total cross sectional area, MM2.
Those look like phoenix terminals, what do the instructions say?
I typically will put two wires in one terminal...
 
You are right, it is typical to see 2 wires on terminal blocks. Usually machines aren't built this way but if designs change, then you get the multiples.
Mostly on the supplies. I like to add spare supply terminals when I build a panel.
 
You are right, it is typical to see 2 wires on terminal blocks. Usually machines aren't built this way but if designs change, then you get the multiples.
Mostly on the supplies. I like to add spare supply terminals when I build a panel.
 
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